X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/d58bf5aa3d3631a46847733b1ff1985b30140228..6b88bc9c1f6d4b32c70e7ef68f8c65266e431623:/util.c diff --git a/util.c b/util.c index 0d33863..b91601d 100644 --- a/util.c +++ b/util.c @@ -53,7 +53,13 @@ #define FLUSH #ifdef LEAKTEST -static void xstat _((void)); + +static void xstat _((int)); +long xcount[MAXXCOUNT]; +long lastxcount[MAXXCOUNT]; +long xycount[MAXXCOUNT][MAXYCOUNT]; +long lastxycount[MAXXCOUNT][MAXYCOUNT]; + #endif #ifndef MYMALLOC @@ -67,8 +73,7 @@ static void xstat _((void)); */ Malloc_t -safemalloc(size) -MEM_SIZE size; +safemalloc(MEM_SIZE size) { Malloc_t ptr; #ifdef HAS_64K_LIMIT @@ -81,19 +86,20 @@ MEM_SIZE size; if ((long)size < 0) croak("panic: malloc"); #endif - ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */ + ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */ #if !(defined(I286) || defined(atarist)) - DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); + DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,PL_an++,(long)size)); #else - DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); + DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,PL_an++,(long)size)); #endif if (ptr != Nullch) return ptr; - else if (nomemok) + else if (PL_nomemok) return Nullch; else { PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; my_exit(1); + return Nullch; } /*NOTREACHED*/ } @@ -101,13 +107,11 @@ MEM_SIZE size; /* paranoid version of realloc */ Malloc_t -saferealloc(where,size) -Malloc_t where; -MEM_SIZE size; +saferealloc(Malloc_t where,MEM_SIZE size) { Malloc_t ptr; #if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) - Malloc_t realloc(); + Malloc_t PerlMem_realloc(); #endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */ #ifdef HAS_64K_LIMIT @@ -117,33 +121,39 @@ MEM_SIZE size; my_exit(1); } #endif /* HAS_64K_LIMIT */ + if (!size) { + safefree(where); + return NULL; + } + if (!where) - croak("Null realloc"); + return safemalloc(size); #ifdef DEBUGGING if ((long)size < 0) croak("panic: realloc"); #endif - ptr = realloc(where,size?size:1); /* realloc(0) is NASTY on our system */ + ptr = PerlMem_realloc(where,size); #if !(defined(I286) || defined(atarist)) DEBUG_m( { - PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,an++); - PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); + PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,PL_an++); + PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,PL_an++,(long)size); } ) #else DEBUG_m( { - PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,an++); - PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); + PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,PL_an++); + PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,PL_an++,(long)size); } ) #endif if (ptr != Nullch) return ptr; - else if (nomemok) + else if (PL_nomemok) return Nullch; else { PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; my_exit(1); + return Nullch; } /*NOTREACHED*/ } @@ -151,26 +161,23 @@ MEM_SIZE size; /* safe version of free */ Free_t -safefree(where) -Malloc_t where; +safefree(Malloc_t where) { #if !(defined(I286) || defined(atarist)) - DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",where,an++)); + DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",(char *) where,PL_an++)); #else - DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",where,an++)); + DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",(char *) where,PL_an++)); #endif if (where) { /*SUPPRESS 701*/ - free(where); + PerlMem_free(where); } } /* safe version of calloc */ Malloc_t -safecalloc(count, size) -MEM_SIZE count; -MEM_SIZE size; +safecalloc(MEM_SIZE count, MEM_SIZE size) { Malloc_t ptr; @@ -186,21 +193,22 @@ MEM_SIZE size; croak("panic: calloc"); #endif size *= count; - ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */ + ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */ #if !(defined(I286) || defined(atarist)) - DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); + DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,PL_an++,(long)count,(long)size)); #else - DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); + DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,PL_an++,(long)count,(long)size)); #endif if (ptr != Nullch) { memset((void*)ptr, 0, size); return ptr; } - else if (nomemok) + else if (PL_nomemok) return Nullch; else { PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; my_exit(1); + return Nullch; } /*NOTREACHED*/ } @@ -209,71 +217,141 @@ MEM_SIZE size; #ifdef LEAKTEST -#define ALIGN sizeof(long) +struct mem_test_strut { + union { + long type; + char c[2]; + } u; + long size; +}; + +# define ALIGN sizeof(struct mem_test_strut) + +# define sizeof_chunk(ch) (((struct mem_test_strut*) (ch))->size) +# define typeof_chunk(ch) \ + (((struct mem_test_strut*) (ch))->u.c[0] + ((struct mem_test_strut*) (ch))->u.c[1]*100) +# define set_typeof_chunk(ch,t) \ + (((struct mem_test_strut*) (ch))->u.c[0] = t % 100, ((struct mem_test_strut*) (ch))->u.c[1] = t / 100) +#define SIZE_TO_Y(size) ( (size) > MAXY_SIZE \ + ? MAXYCOUNT - 1 \ + : ( (size) > 40 \ + ? ((size) - 1)/8 + 5 \ + : ((size) - 1)/4)) Malloc_t -safexmalloc(x,size) -I32 x; -MEM_SIZE size; +safexmalloc(I32 x, MEM_SIZE size) { - register Malloc_t where; + register char* where = (char*)safemalloc(size + ALIGN); - where = safemalloc(size + ALIGN); - xcount[x]++; - where[0] = x % 100; - where[1] = x / 100; - return where + ALIGN; + xcount[x] += size; + xycount[x][SIZE_TO_Y(size)]++; + set_typeof_chunk(where, x); + sizeof_chunk(where) = size; + return (Malloc_t)(where + ALIGN); } Malloc_t -safexrealloc(where,size) -Malloc_t where; -MEM_SIZE size; +safexrealloc(Malloc_t wh, MEM_SIZE size) { - register Malloc_t new = saferealloc(where - ALIGN, size + ALIGN); - return new + ALIGN; + char *where = (char*)wh; + + if (!wh) + return safexmalloc(0,size); + + { + MEM_SIZE old = sizeof_chunk(where - ALIGN); + int t = typeof_chunk(where - ALIGN); + register char* new = (char*)saferealloc(where - ALIGN, size + ALIGN); + + xycount[t][SIZE_TO_Y(old)]--; + xycount[t][SIZE_TO_Y(size)]++; + xcount[t] += size - old; + sizeof_chunk(new) = size; + return (Malloc_t)(new + ALIGN); + } } void -safexfree(where) -Malloc_t where; +safexfree(Malloc_t wh) { I32 x; - + char *where = (char*)wh; + MEM_SIZE size; + if (!where) return; where -= ALIGN; + size = sizeof_chunk(where); x = where[0] + 100 * where[1]; - xcount[x]--; + xcount[x] -= size; + xycount[x][SIZE_TO_Y(size)]--; safefree(where); } Malloc_t -safexcalloc(x,count,size) -I32 x; -MEM_SIZE count; -MEM_SIZE size; +safexcalloc(I32 x,MEM_SIZE count, MEM_SIZE size) { - register Malloc_t where; - - where = safexmalloc(x, size * count + ALIGN); - xcount[x]++; - memset((void*)where + ALIGN, 0, size * count); - where[0] = x % 100; - where[1] = x / 100; - return where + ALIGN; + register char * where = (char*)safexmalloc(x, size * count + ALIGN); + xcount[x] += size; + xycount[x][SIZE_TO_Y(size)]++; + memset((void*)(where + ALIGN), 0, size * count); + set_typeof_chunk(where, x); + sizeof_chunk(where) = size; + return (Malloc_t)(where + ALIGN); } static void -xstat() +xstat(int flag) { - register I32 i; + register I32 i, j, total = 0; + I32 subtot[MAXYCOUNT]; + for (j = 0; j < MAXYCOUNT; j++) { + subtot[j] = 0; + } + + PerlIO_printf(PerlIO_stderr(), " Id subtot 4 8 12 16 20 24 28 32 36 40 48 56 64 72 80 80+\n", total); for (i = 0; i < MAXXCOUNT; i++) { - if (xcount[i] > lastxcount[i]) { - PerlIO_printf(PerlIO_stderr(),"%2d %2d\t%ld\n", i / 100, i % 100, xcount[i]); + total += xcount[i]; + for (j = 0; j < MAXYCOUNT; j++) { + subtot[j] += xycount[i][j]; + } + if (flag == 0 + ? xcount[i] /* Have something */ + : (flag == 2 + ? xcount[i] != lastxcount[i] /* Changed */ + : xcount[i] > lastxcount[i])) { /* Growed */ + PerlIO_printf(PerlIO_stderr(),"%2d %02d %7ld ", i / 100, i % 100, + flag == 2 ? xcount[i] - lastxcount[i] : xcount[i]); lastxcount[i] = xcount[i]; + for (j = 0; j < MAXYCOUNT; j++) { + if ( flag == 0 + ? xycount[i][j] /* Have something */ + : (flag == 2 + ? xycount[i][j] != lastxycount[i][j] /* Changed */ + : xycount[i][j] > lastxycount[i][j])) { /* Growed */ + PerlIO_printf(PerlIO_stderr(),"%3ld ", + flag == 2 + ? xycount[i][j] - lastxycount[i][j] + : xycount[i][j]); + lastxycount[i][j] = xycount[i][j]; + } else { + PerlIO_printf(PerlIO_stderr(), " . ", xycount[i][j]); + } + } + PerlIO_printf(PerlIO_stderr(), "\n"); + } + } + if (flag != 2) { + PerlIO_printf(PerlIO_stderr(), "Total %7ld ", total); + for (j = 0; j < MAXYCOUNT; j++) { + if (subtot[j]) { + PerlIO_printf(PerlIO_stderr(), "%3ld ", subtot[j]); + } else { + PerlIO_printf(PerlIO_stderr(), " . "); + } } + PerlIO_printf(PerlIO_stderr(), "\n"); } } @@ -282,13 +360,7 @@ xstat() /* copy a string up to some (non-backslashed) delimiter, if any */ char * -delimcpy(to, toend, from, fromend, delim, retlen) -register char *to; -register char *toend; -register char *from; -register char *fromend; -register int delim; -I32 *retlen; +delimcpy(register char *to, register char *toend, register char *from, register char *fromend, register int delim, I32 *retlen) { register I32 tolen; for (tolen = 0; from < fromend; from++, tolen++) { @@ -317,9 +389,7 @@ I32 *retlen; /* This routine was donated by Corey Satten. */ char * -instr(big, little) -register char *big; -register char *little; +instr(register char *big, register char *little) { register char *s, *x; register I32 first; @@ -349,11 +419,7 @@ register char *little; /* same as instr but allow embedded nulls */ char * -ninstr(big, bigend, little, lend) -register char *big; -register char *bigend; -char *little; -char *lend; +ninstr(register char *big, register char *bigend, char *little, char *lend) { register char *s, *x; register I32 first = *little; @@ -382,11 +448,7 @@ char *lend; /* reverse of the above--find last substring */ char * -rninstr(big, bigend, little, lend) -register char *big; -char *bigend; -char *little; -char *lend; +rninstr(register char *big, char *bigend, char *little, char *lend) { register char *bigbeg; register char *s, *x; @@ -416,8 +478,7 @@ char *lend; * Set up for a new ctype locale. */ void -perl_new_ctype(newctype) - char *newctype; +perl_new_ctype(char *newctype) { #ifdef USE_LOCALE_CTYPE @@ -439,28 +500,27 @@ perl_new_ctype(newctype) * Set up for a new collation locale. */ void -perl_new_collate(newcoll) - char *newcoll; +perl_new_collate(char *newcoll) { #ifdef USE_LOCALE_COLLATE if (! newcoll) { - if (collation_name) { - ++collation_ix; - Safefree(collation_name); - collation_name = NULL; - collation_standard = TRUE; - collxfrm_base = 0; - collxfrm_mult = 2; + if (PL_collation_name) { + ++PL_collation_ix; + Safefree(PL_collation_name); + PL_collation_name = NULL; + PL_collation_standard = TRUE; + PL_collxfrm_base = 0; + PL_collxfrm_mult = 2; } return; } - if (! collation_name || strNE(collation_name, newcoll)) { - ++collation_ix; - Safefree(collation_name); - collation_name = savepv(newcoll); - collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX")); + if (! PL_collation_name || strNE(PL_collation_name, newcoll)) { + ++PL_collation_ix; + Safefree(PL_collation_name); + PL_collation_name = savepv(newcoll); + PL_collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX")); { /* 2: at most so many chars ('a', 'b'). */ @@ -472,8 +532,8 @@ perl_new_collate(newcoll) SSize_t mult = fb - fa; if (mult < 1) croak("strxfrm() gets absurd"); - collxfrm_base = (fa > mult) ? (fa - mult) : 0; - collxfrm_mult = mult; + PL_collxfrm_base = (fa > mult) ? (fa - mult) : 0; + PL_collxfrm_mult = mult; } } @@ -484,54 +544,53 @@ perl_new_collate(newcoll) * Set up for a new numeric locale. */ void -perl_new_numeric(newnum) - char *newnum; +perl_new_numeric(char *newnum) { #ifdef USE_LOCALE_NUMERIC if (! newnum) { - if (numeric_name) { - Safefree(numeric_name); - numeric_name = NULL; - numeric_standard = TRUE; - numeric_local = TRUE; + if (PL_numeric_name) { + Safefree(PL_numeric_name); + PL_numeric_name = NULL; + PL_numeric_standard = TRUE; + PL_numeric_local = TRUE; } return; } - if (! numeric_name || strNE(numeric_name, newnum)) { - Safefree(numeric_name); - numeric_name = savepv(newnum); - numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX")); - numeric_local = TRUE; + if (! PL_numeric_name || strNE(PL_numeric_name, newnum)) { + Safefree(PL_numeric_name); + PL_numeric_name = savepv(newnum); + PL_numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX")); + PL_numeric_local = TRUE; } #endif /* USE_LOCALE_NUMERIC */ } void -perl_set_numeric_standard() +perl_set_numeric_standard(void) { #ifdef USE_LOCALE_NUMERIC - if (! numeric_standard) { + if (! PL_numeric_standard) { setlocale(LC_NUMERIC, "C"); - numeric_standard = TRUE; - numeric_local = FALSE; + PL_numeric_standard = TRUE; + PL_numeric_local = FALSE; } #endif /* USE_LOCALE_NUMERIC */ } void -perl_set_numeric_local() +perl_set_numeric_local(void) { #ifdef USE_LOCALE_NUMERIC - if (! numeric_local) { - setlocale(LC_NUMERIC, numeric_name); - numeric_standard = FALSE; - numeric_local = TRUE; + if (! PL_numeric_local) { + setlocale(LC_NUMERIC, PL_numeric_name); + PL_numeric_standard = FALSE; + PL_numeric_local = TRUE; } #endif /* USE_LOCALE_NUMERIC */ @@ -542,8 +601,7 @@ perl_set_numeric_local() * Initialize locale awareness. */ int -perl_init_i18nl10n(printwarn) - int printwarn; +perl_init_i18nl10n(int printwarn) { int ok = 1; /* returns @@ -563,8 +621,8 @@ perl_init_i18nl10n(printwarn) #ifdef USE_LOCALE_NUMERIC char *curnum = NULL; #endif /* USE_LOCALE_NUMERIC */ - char *lc_all = getenv("LC_ALL"); - char *lang = getenv("LANG"); + char *lc_all = PerlEnv_getenv("LC_ALL"); + char *lang = PerlEnv_getenv("LANG"); bool setlocale_failure = FALSE; #ifdef LOCALE_ENVIRON_REQUIRED @@ -588,19 +646,19 @@ perl_init_i18nl10n(printwarn) { #ifdef USE_LOCALE_CTYPE if (! (curctype = setlocale(LC_CTYPE, - (!done && (lang || getenv("LC_CTYPE"))) + (!done && (lang || PerlEnv_getenv("LC_CTYPE"))) ? "" : Nullch))) setlocale_failure = TRUE; #endif /* USE_LOCALE_CTYPE */ #ifdef USE_LOCALE_COLLATE if (! (curcoll = setlocale(LC_COLLATE, - (!done && (lang || getenv("LC_COLLATE"))) + (!done && (lang || PerlEnv_getenv("LC_COLLATE"))) ? "" : Nullch))) setlocale_failure = TRUE; #endif /* USE_LOCALE_COLLATE */ #ifdef USE_LOCALE_NUMERIC if (! (curnum = setlocale(LC_NUMERIC, - (!done && (lang || getenv("LC_NUMERIC"))) + (!done && (lang || PerlEnv_getenv("LC_NUMERIC"))) ? "" : Nullch))) setlocale_failure = TRUE; #endif /* USE_LOCALE_NUMERIC */ @@ -647,7 +705,7 @@ perl_init_i18nl10n(printwarn) char *p; bool locwarn = (printwarn > 1 || printwarn && - (!(p = getenv("PERL_BADLANG")) || atoi(p))); + (!(p = PerlEnv_getenv("PERL_BADLANG")) || atoi(p))); if (locwarn) { #ifdef LC_ALL @@ -772,8 +830,7 @@ perl_init_i18nl10n(printwarn) /* Backwards compatibility. */ int -perl_init_i18nl14n(printwarn) - int printwarn; +perl_init_i18nl14n(int printwarn) { return perl_init_i18nl10n(printwarn); } @@ -788,35 +845,32 @@ perl_init_i18nl14n(printwarn) * Please see sv_collxfrm() to see how this is used. */ char * -mem_collxfrm(s, len, xlen) - const char *s; - STRLEN len; - STRLEN *xlen; +mem_collxfrm(const char *s, STRLEN len, STRLEN *xlen) { char *xbuf; - STRLEN xalloc, xin, xout; + STRLEN xAlloc, xin, xout; /* xalloc is a reserved word in VC */ /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */ /* the +1 is for the terminating NUL. */ - xalloc = sizeof(collation_ix) + collxfrm_base + (collxfrm_mult * len) + 1; - New(171, xbuf, xalloc, char); + xAlloc = sizeof(PL_collation_ix) + PL_collxfrm_base + (PL_collxfrm_mult * len) + 1; + New(171, xbuf, xAlloc, char); if (! xbuf) goto bad; - *(U32*)xbuf = collation_ix; - xout = sizeof(collation_ix); + *(U32*)xbuf = PL_collation_ix; + xout = sizeof(PL_collation_ix); for (xin = 0; xin < len; ) { SSize_t xused; for (;;) { - xused = strxfrm(xbuf + xout, s + xin, xalloc - xout); + xused = strxfrm(xbuf + xout, s + xin, xAlloc - xout); if (xused == -1) goto bad; - if (xused < xalloc - xout) + if (xused < xAlloc - xout) break; - xalloc = (2 * xalloc) + 1; - Renew(xbuf, xalloc, char); + xAlloc = (2 * xAlloc) + 1; + Renew(xbuf, xAlloc, char); if (! xbuf) goto bad; } @@ -829,7 +883,7 @@ mem_collxfrm(s, len, xlen) } xbuf[xout] = '\0'; - *xlen = xout - sizeof(collation_ix); + *xlen = xout - sizeof(PL_collation_ix); return xbuf; bad: @@ -841,8 +895,7 @@ mem_collxfrm(s, len, xlen) #endif /* USE_LOCALE_COLLATE */ void -fbm_compile(sv) -SV *sv; +fbm_compile(SV *sv, U32 flags /* not used yet */) { register unsigned char *s; register unsigned char *table; @@ -851,22 +904,24 @@ SV *sv; I32 rarest = 0; U32 frequency = 256; - if (len > 255) + sv_upgrade(sv, SVt_PVBM); + if (len > 255 || len == 0) /* TAIL might be on on a zero-length string. */ return; /* can't have offsets that big */ - Sv_Grow(sv,len+258); - table = (unsigned char*)(SvPVX(sv) + len + 1); - s = table - 2; - for (i = 0; i < 256; i++) { - table[i] = len; - } - i = 0; - while (s >= (unsigned char*)(SvPVX(sv))) - { - if (table[*s] == len) - table[*s] = i; - s--,i++; + if (len > 2) { + Sv_Grow(sv,len + 258); + table = (unsigned char*)(SvPVX(sv) + len + 1); + s = table - 2; + for (i = 0; i < 256; i++) { + table[i] = len; + } + i = 0; + while (s >= (unsigned char*)(SvPVX(sv))) + { + if (table[*s] == len) + table[*s] = i; + s--,i++; + } } - sv_upgrade(sv, SVt_PVBM); sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */ SvVALID_on(sv); @@ -883,10 +938,7 @@ SV *sv; } char * -fbm_instr(big, bigend, littlestr) -unsigned char *big; -register unsigned char *bigend; -SV *littlestr; +fbm_instr(unsigned char *big, register unsigned char *bigend, SV *littlestr, U32 flags) { register unsigned char *s; register I32 tmp; @@ -899,24 +951,58 @@ SV *littlestr; if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) { STRLEN len; char *l = SvPV(littlestr,len); - if (!len) + if (!len) { + if (SvTAIL(littlestr)) { /* Can be only 0-len constant + substr => we can ignore SvVALID */ + if (PL_multiline) { + char *t = "\n"; + if ((s = (unsigned char*)ninstr((char*)big, (char*)bigend, + t, t + len))) { + return (char*)s; + } + } + if (bigend > big && bigend[-1] == '\n') + return (char *)(bigend - 1); + else + return (char *) bigend; + } return (char*)big; + } return ninstr((char*)big,(char*)bigend, l, l + len); } littlelen = SvCUR(littlestr); - if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */ + if (SvTAIL(littlestr) && !PL_multiline) { /* tail anchored? */ if (littlelen > bigend - big) return Nullch; little = (unsigned char*)SvPVX(littlestr); s = bigend - littlelen; - if (*s == *little && memEQ((char*)s,(char*)little,littlelen)) + if (s > big + && bigend[-1] == '\n' + && s[-1] == *little && memEQ((char*)s - 1,(char*)little,littlelen)) + return (char*)s - 1; /* how sweet it is */ + else if (*s == *little && memEQ((char*)s,(char*)little,littlelen)) return (char*)s; /* how sweet it is */ - else if (bigend[-1] == '\n' && little[littlelen-1] != '\n' - && s > big) { - s--; - if (*s == *little && memEQ((char*)s,(char*)little,littlelen)) + return Nullch; + } + if (littlelen <= 2) { + unsigned char c1 = (unsigned char)SvPVX(littlestr)[0]; + unsigned char c2 = (unsigned char)SvPVX(littlestr)[1]; + /* This may do extra comparisons if littlelen == 2, but this + should be hidden in the noise since we do less indirection. */ + + s = big; + bigend -= littlelen; + while (s <= bigend) { + if (s[0] == c1 + && (littlelen == 1 || s[1] == c2) + && (!SvTAIL(littlestr) + || s == bigend + || s[littlelen] == '\n')) /* Automatically multiline */ + { return (char*)s; + } + s++; } return Nullch; } @@ -946,83 +1032,106 @@ SV *littlestr; while (tmp--) { if (*--s == *--little) continue; + differ: s = olds + 1; /* here we pay the price for failure */ little = oldlittle; if (s < bigend) /* fake up continue to outer loop */ goto top2; return Nullch; } + if (SvTAIL(littlestr) /* automatically multiline */ + && olds + 1 != bigend + && olds[1] != '\n') + goto differ; return (char *)s; } } return Nullch; } +/* start_shift, end_shift are positive quantities which give offsets + of ends of some substring of bigstr. + If `last' we want the last occurence. + old_posp is the way of communication between consequent calls if + the next call needs to find the . + The initial *old_posp should be -1. + Note that we do not take into account SvTAIL, so it may give wrong + positives if _ALL flag is set. + */ + char * -screaminstr(bigstr, littlestr) -SV *bigstr; -SV *littlestr; +screaminstr(SV *bigstr, SV *littlestr, I32 start_shift, I32 end_shift, I32 *old_posp, I32 last) { + dTHR; register unsigned char *s, *x; register unsigned char *big; register I32 pos; register I32 previous; register I32 first; register unsigned char *little; - register unsigned char *bigend; + register I32 stop_pos; register unsigned char *littleend; + I32 found = 0; - if ((pos = screamfirst[BmRARE(littlestr)]) < 0) + if (*old_posp == -1 + ? (pos = PL_screamfirst[BmRARE(littlestr)]) < 0 + : (((pos = *old_posp), pos += PL_screamnext[pos]) == 0)) return Nullch; little = (unsigned char *)(SvPVX(littlestr)); littleend = little + SvCUR(littlestr); first = *little++; + /* The value of pos we can start at: */ previous = BmPREVIOUS(littlestr); big = (unsigned char *)(SvPVX(bigstr)); - bigend = big + SvCUR(bigstr); - while (pos < previous) { - if (!(pos += screamnext[pos])) + /* The value of pos we can stop at: */ + stop_pos = SvCUR(bigstr) - end_shift - (SvCUR(littlestr) - 1 - previous); + if (previous + start_shift > stop_pos) return Nullch; + while (pos < previous + start_shift) { + if (!(pos += PL_screamnext[pos])) return Nullch; } #ifdef POINTERRIGOR do { + if (pos >= stop_pos) break; if (big[pos-previous] != first) continue; for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { - if (x >= bigend) - return Nullch; if (*s++ != *x++) { s--; break; } } - if (s == littleend) - return (char *)(big+pos-previous); - } while ( pos += screamnext[pos] ); + if (s == littleend) { + *old_posp = pos; + if (!last) return (char *)(big+pos-previous); + found = 1; + } + } while ( pos += PL_screamnext[pos] ); + return (last && found) ? (char *)(big+(*old_posp)-previous) : Nullch; #else /* !POINTERRIGOR */ big -= previous; do { + if (pos >= stop_pos) break; if (big[pos] != first) continue; for (x=big+pos+1,s=little; s < littleend; /**/ ) { - if (x >= bigend) - return Nullch; if (*s++ != *x++) { s--; break; } } - if (s == littleend) - return (char *)(big+pos); - } while ( pos += screamnext[pos] ); + if (s == littleend) { + *old_posp = pos; + if (!last) return (char *)(big+pos); + found = 1; + } + } while ( pos += PL_screamnext[pos] ); + return (last && found) ? (char *)(big+(*old_posp)) : Nullch; #endif /* POINTERRIGOR */ - return Nullch; } I32 -ibcmp(s1, s2, len) -char *s1, *s2; -register I32 len; +ibcmp(char *s1, char *s2, register I32 len) { register U8 *a = (U8 *)s1; register U8 *b = (U8 *)s2; @@ -1035,9 +1144,7 @@ register I32 len; } I32 -ibcmp_locale(s1, s2, len) -char *s1, *s2; -register I32 len; +ibcmp_locale(char *s1, char *s2, register I32 len) { register U8 *a = (U8 *)s1; register U8 *b = (U8 *)s2; @@ -1052,8 +1159,7 @@ register I32 len; /* copy a string to a safe spot */ char * -savepv(sv) -char *sv; +savepv(char *sv) { register char *newaddr; @@ -1065,9 +1171,7 @@ char *sv; /* same thing but with a known length */ char * -savepvn(sv, len) -char *sv; -register I32 len; +savepvn(char *sv, register I32 len) { register char *newaddr; @@ -1079,8 +1183,8 @@ register I32 len; /* the SV for form() and mess() is not kept in an arena */ -static SV * -mess_alloc() +STATIC SV * +mess_alloc(void) { SV *sv; XPVMG *any; @@ -1094,57 +1198,43 @@ mess_alloc() return sv; } -#ifdef I_STDARG char * form(const char* pat, ...) -#else -/*VARARGS0*/ -char * -form(pat, va_alist) - const char *pat; - va_dcl -#endif { va_list args; -#ifdef I_STDARG va_start(args, pat); -#else - va_start(args); -#endif - if (!mess_sv) - mess_sv = mess_alloc(); - sv_vsetpvfn(mess_sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); + if (!PL_mess_sv) + PL_mess_sv = mess_alloc(); + sv_vsetpvfn(PL_mess_sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); va_end(args); - return SvPVX(mess_sv); + return SvPVX(PL_mess_sv); } char * -mess(pat, args) - const char *pat; - va_list *args; +mess(const char *pat, va_list *args) { SV *sv; static char dgd[] = " during global destruction.\n"; - if (!mess_sv) - mess_sv = mess_alloc(); - sv = mess_sv; + if (!PL_mess_sv) + PL_mess_sv = mess_alloc(); + sv = PL_mess_sv; sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') { dTHR; - if (dirty) + if (PL_dirty) sv_catpv(sv, dgd); else { - if (curcop->cop_line) + if (PL_curcop->cop_line) sv_catpvf(sv, " at %_ line %ld", - GvSV(curcop->cop_filegv), (long)curcop->cop_line); - if (GvIO(last_in_gv) && IoLINES(GvIOp(last_in_gv))) { - bool line_mode = (RsSIMPLE(rs) && - SvLEN(rs) == 1 && *SvPVX(rs) == '\n'); + GvSV(PL_curcop->cop_filegv), (long)PL_curcop->cop_line); + if (GvIO(PL_last_in_gv) && IoLINES(GvIOp(PL_last_in_gv))) { + bool line_mode = (RsSIMPLE(PL_rs) && + SvLEN(PL_rs) == 1 && *SvPVX(PL_rs) == '\n'); sv_catpvf(sv, ", <%s> %s %ld", - last_in_gv == argvgv ? "" : GvNAME(last_in_gv), + PL_last_in_gv == PL_argvgv ? "" : GvNAME(PL_last_in_gv), line_mode ? "line" : "chunk", - (long)IoLINES(GvIOp(last_in_gv))); + (long)IoLINES(GvIOp(PL_last_in_gv))); } sv_catpv(sv, ".\n"); } @@ -1152,52 +1242,38 @@ mess(pat, args) return SvPVX(sv); } -#ifdef I_STDARG OP * die(const char* pat, ...) -#else -/*VARARGS0*/ -OP * -die(pat, va_alist) - const char *pat; - va_dcl -#endif { dTHR; va_list args; char *message; - I32 oldrunlevel = runlevel; - int was_in_eval = in_eval; + int was_in_eval = PL_in_eval; HV *stash; GV *gv; CV *cv; - DEBUG_L(PerlIO_printf(PerlIO_stderr(), "die: curstack = %p, mainstack= %p\n", - curstack, mainstack));/*debug*/ - /* We have to switch back to mainstack or die_where may try to pop - * the eval block from the wrong stack if die is being called from a - * signal handler. - dkindred@cs.cmu.edu */ - if (curstack != mainstack) { - dSP; - SWITCHSTACK(curstack, mainstack); - } +#ifdef USE_THREADS + DEBUG_L(PerlIO_printf(PerlIO_stderr(), + "%p: die: curstack = %p, mainstack = %p\n", + thr, PL_curstack, PL_mainstack)); +#endif /* USE_THREADS */ -#ifdef I_STDARG va_start(args, pat); -#else - va_start(args); -#endif - message = mess(pat, &args); + message = pat ? mess(pat, &args) : Nullch; va_end(args); - DEBUG_L(PerlIO_printf(PerlIO_stderr(), "die: message = %s\ndiehook = %p\n", - message, diehook));/*debug*/ - if (diehook) { +#ifdef USE_THREADS + DEBUG_L(PerlIO_printf(PerlIO_stderr(), + "%p: die: message = %s\ndiehook = %p\n", + thr, message, PL_diehook)); +#endif /* USE_THREADS */ + if (PL_diehook) { /* sv_2cv might call croak() */ - SV *olddiehook = diehook; + SV *olddiehook = PL_diehook; ENTER; - SAVESPTR(diehook); - diehook = Nullsv; + SAVESPTR(PL_diehook); + PL_diehook = Nullsv; cv = sv_2cv(olddiehook, &stash, &gv, 0); LEAVE; if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { @@ -1205,38 +1281,38 @@ die(pat, va_alist) SV *msg; ENTER; - msg = newSVpv(message, 0); - SvREADONLY_on(msg); - SAVEFREESV(msg); + if(message) { + msg = newSVpv(message, 0); + SvREADONLY_on(msg); + SAVEFREESV(msg); + } + else { + msg = ERRSV; + } - PUSHMARK(sp); + PUSHSTACKi(PERLSI_DIEHOOK); + PUSHMARK(SP); XPUSHs(msg); PUTBACK; perl_call_sv((SV*)cv, G_DISCARD); - + POPSTACK; LEAVE; } } - restartop = die_where(message); + PL_restartop = die_where(message); +#ifdef USE_THREADS DEBUG_L(PerlIO_printf(PerlIO_stderr(), - "die: restartop = %p, was_in_eval = %d, oldrunlevel = %d\n", - restartop, was_in_eval, oldrunlevel));/*debug*/ - if ((!restartop && was_in_eval) || oldrunlevel > 1) + "%p: die: restartop = %p, was_in_eval = %d, top_env = %p\n", + thr, PL_restartop, was_in_eval, PL_top_env)); +#endif /* USE_THREADS */ + if ((!PL_restartop && was_in_eval) || PL_top_env->je_prev) JMPENV_JUMP(3); - return restartop; + return PL_restartop; } -#ifdef I_STDARG void croak(const char* pat, ...) -#else -/*VARARGS0*/ -void -croak(pat, va_alist) - char *pat; - va_dcl -#endif { dTHR; va_list args; @@ -1245,22 +1321,18 @@ croak(pat, va_alist) GV *gv; CV *cv; -#ifdef I_STDARG va_start(args, pat); -#else - va_start(args); -#endif message = mess(pat, &args); va_end(args); #ifdef USE_THREADS DEBUG_L(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message)); #endif /* USE_THREADS */ - if (diehook) { + if (PL_diehook) { /* sv_2cv might call croak() */ - SV *olddiehook = diehook; + SV *olddiehook = PL_diehook; ENTER; - SAVESPTR(diehook); - diehook = Nullsv; + SAVESPTR(PL_diehook); + PL_diehook = Nullsv; cv = sv_2cv(olddiehook, &stash, &gv, 0); LEAVE; if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { @@ -1272,16 +1344,17 @@ croak(pat, va_alist) SvREADONLY_on(msg); SAVEFREESV(msg); - PUSHMARK(sp); + PUSHSTACKi(PERLSI_DIEHOOK); + PUSHMARK(SP); XPUSHs(msg); PUTBACK; perl_call_sv((SV*)cv, G_DISCARD); - + POPSTACK; LEAVE; } } - if (in_eval) { - restartop = die_where(message); + if (PL_in_eval) { + PL_restartop = die_where(message); JMPENV_JUMP(3); } PerlIO_puts(PerlIO_stderr(),message); @@ -1290,14 +1363,7 @@ croak(pat, va_alist) } void -#ifdef I_STDARG warn(const char* pat,...) -#else -/*VARARGS0*/ -warn(pat,va_alist) - const char *pat; - va_dcl -#endif { va_list args; char *message; @@ -1305,21 +1371,17 @@ warn(pat,va_alist) GV *gv; CV *cv; -#ifdef I_STDARG va_start(args, pat); -#else - va_start(args); -#endif message = mess(pat, &args); va_end(args); - if (warnhook) { + if (PL_warnhook) { /* sv_2cv might call warn() */ dTHR; - SV *oldwarnhook = warnhook; + SV *oldwarnhook = PL_warnhook; ENTER; - SAVESPTR(warnhook); - warnhook = Nullsv; + SAVESPTR(PL_warnhook); + PL_warnhook = Nullsv; cv = sv_2cv(oldwarnhook, &stash, &gv, 0); LEAVE; if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { @@ -1331,18 +1393,24 @@ warn(pat,va_alist) SvREADONLY_on(msg); SAVEFREESV(msg); - PUSHMARK(sp); + PUSHSTACKi(PERLSI_WARNHOOK); + PUSHMARK(SP); XPUSHs(msg); PUTBACK; perl_call_sv((SV*)cv, G_DISCARD); - + POPSTACK; LEAVE; return; } } PerlIO_puts(PerlIO_stderr(),message); #ifdef LEAKTEST - DEBUG_L(xstat()); + DEBUG_L(*message == '!' + ? (xstat(message[1]=='!' + ? (message[2]=='!' ? 2 : 1) + : 0) + , 0) + : 0); #endif (void)PerlIO_flush(PerlIO_stderr()); } @@ -1350,12 +1418,11 @@ warn(pat,va_alist) #ifndef VMS /* VMS' my_setenv() is in VMS.c */ #ifndef WIN32 void -my_setenv(nam,val) -char *nam, *val; +my_setenv(char *nam, char *val) { register I32 i=setenv_getix(nam); /* where does it go? */ - if (environ == origenviron) { /* need we copy environment? */ + if (environ == PL_origenviron) { /* need we copy environment? */ I32 j; I32 max; char **tmpenv; @@ -1399,8 +1466,7 @@ char *nam, *val; #else /* if WIN32 */ void -my_setenv(nam,val) -char *nam, *val; +my_setenv(char *nam,char *val) { #ifdef USE_WIN32_RTL_ENV @@ -1434,7 +1500,7 @@ char *nam, *val; vallen = strlen(val); New(904, envstr, namlen + vallen + 3, char); (void)sprintf(envstr,"%s=%s",nam,val); - (void)putenv(envstr); + (void)PerlEnv_putenv(envstr); if (oldstr) Safefree(oldstr); #ifdef _MSC_VER @@ -1465,8 +1531,7 @@ char *nam, *val; #endif /* WIN32 */ I32 -setenv_getix(nam) -char *nam; +setenv_getix(char *nam) { register I32 i, len = strlen(nam); @@ -1492,17 +1557,14 @@ char *f; { I32 i; - for (i = 0; unlink(f) >= 0; i++) ; + for (i = 0; PerlLIO_unlink(f) >= 0; i++) ; return i ? 0 : -1; } #endif #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY) char * -my_bcopy(from,to,len) -register char *from; -register char *to; -register I32 len; +my_bcopy(register char *from,register char *to,register I32 len) { char *retval = to; @@ -1568,7 +1630,6 @@ register I32 len; } #endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */ -#if defined(I_STDARG) || defined(I_VARARGS) #ifndef HAS_VPRINTF #ifdef USE_CHAR_VSPRINTF @@ -1599,17 +1660,11 @@ char *args; } #endif /* HAS_VPRINTF */ -#endif /* I_VARARGS || I_STDARGS */ #ifdef MYSWAP #if BYTEORDER != 0x4321 short -#ifndef CAN_PROTOTYPE -my_swap(s) -short s; -#else my_swap(short s) -#endif { #if (BYTEORDER & 1) == 0 short result; @@ -1622,12 +1677,7 @@ my_swap(short s) } long -#ifndef CAN_PROTOTYPE -my_htonl(l) -register long l; -#else my_htonl(long l) -#endif { union { long result; @@ -1656,12 +1706,7 @@ my_htonl(long l) } long -#ifndef CAN_PROTOTYPE -my_ntohl(l) -register long l; -#else my_ntohl(long l) -#endif { union { long l; @@ -1754,12 +1799,10 @@ VTOH(vtohl,long) /* VMS' my_popen() is in VMS.c, same with OS/2. */ #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) PerlIO * -my_popen(cmd,mode) -char *cmd; -char *mode; +my_popen(char *cmd, char *mode) { int p[2]; - register I32 this, that; + register I32 This, that; register I32 pid; SV *sv; I32 doexec = strNE(cmd,"-"); @@ -1769,17 +1812,17 @@ char *mode; return my_syspopen(cmd,mode); } #endif - if (pipe(p) < 0) - return Nullfp; - this = (*mode == 'w'); - that = !this; - if (doexec && tainting) { + This = (*mode == 'w'); + that = !This; + if (doexec && PL_tainting) { taint_env(); taint_proper("Insecure %s%s", "EXEC"); } + if (PerlProc_pipe(p) < 0) + return Nullfp; while ((pid = (doexec?vfork():fork())) < 0) { if (errno != EAGAIN) { - close(p[this]); + PerlLIO_close(p[This]); if (!doexec) croak("Can't fork"); return Nullfp; @@ -1789,12 +1832,14 @@ char *mode; if (pid == 0) { GV* tmpgv; +#undef THIS +#undef THAT #define THIS that -#define THAT this - close(p[THAT]); +#define THAT This + PerlLIO_close(p[THAT]); if (p[THIS] != (*mode == 'r')) { - dup2(p[THIS], *mode == 'r'); - close(p[THIS]); + PerlLIO_dup2(p[THIS], *mode == 'r'); + PerlLIO_close(p[THIS]); } if (doexec) { #if !defined(HAS_FCNTL) || !defined(F_SETFD) @@ -1803,33 +1848,33 @@ char *mode; #ifndef NOFILE #define NOFILE 20 #endif - for (fd = maxsysfd + 1; fd < NOFILE; fd++) - close(fd); + for (fd = PL_maxsysfd + 1; fd < NOFILE; fd++) + PerlLIO_close(fd); #endif do_exec(cmd); /* may or may not use the shell */ - _exit(1); + PerlProc__exit(1); } /*SUPPRESS 560*/ if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) sv_setiv(GvSV(tmpgv), (IV)getpid()); - forkprocess = 0; - hv_clear(pidstatus); /* we have no children */ + PL_forkprocess = 0; + hv_clear(PL_pidstatus); /* we have no children */ return Nullfp; #undef THIS #undef THAT } do_execfree(); /* free any memory malloced by child on vfork */ - close(p[that]); - if (p[that] < p[this]) { - dup2(p[this], p[that]); - close(p[this]); - p[this] = p[that]; + PerlLIO_close(p[that]); + if (p[that] < p[This]) { + PerlLIO_dup2(p[This], p[that]); + PerlLIO_close(p[This]); + p[This] = p[that]; } - sv = *av_fetch(fdpid,p[this],TRUE); + sv = *av_fetch(PL_fdpid,p[This],TRUE); (void)SvUPGRADE(sv,SVt_IV); SvIVX(sv) = pid; - forkprocess = pid; - return PerlIO_fdopen(p[this], mode); + PL_forkprocess = pid; + return PerlIO_fdopen(p[This], mode); } #else #if defined(atarist) || defined(DJGPP) @@ -1848,20 +1893,20 @@ char *mode; #endif /* !DOSISH */ #ifdef DUMP_FDS -dump_fds(s) -char *s; +void +dump_fds(char *s) { int fd; struct stat tmpstatbuf; PerlIO_printf(PerlIO_stderr(),"%s", s); for (fd = 0; fd < 32; fd++) { - if (Fstat(fd,&tmpstatbuf) >= 0) + if (PerlLIO_fstat(fd,&tmpstatbuf) >= 0) PerlIO_printf(PerlIO_stderr()," %d",fd); } PerlIO_printf(PerlIO_stderr(),"\n"); } -#endif +#endif /* DUMP_FDS */ #ifndef HAS_DUP2 int @@ -1872,7 +1917,7 @@ int newfd; #if defined(HAS_FCNTL) && defined(F_DUPFD) if (oldfd == newfd) return oldfd; - close(newfd); + PerlLIO_close(newfd); return fcntl(oldfd, F_DUPFD, newfd); #else #define DUP2_MAX_FDS 256 @@ -1882,18 +1927,18 @@ int newfd; if (oldfd == newfd) return oldfd; - close(newfd); + PerlLIO_close(newfd); /* good enough for low fd's... */ - while ((fd = dup(oldfd)) != newfd && fd >= 0) { + while ((fd = PerlLIO_dup(oldfd)) != newfd && fd >= 0) { if (fdx >= DUP2_MAX_FDS) { - close(fd); + PerlLIO_close(fd); fd = -1; break; } fdtmp[fdx++] = fd; } while (fdx > 0) - close(fdtmp[--fdx]); + PerlLIO_close(fdtmp[--fdx]); return fd; #endif } @@ -1903,9 +1948,7 @@ int newfd; #ifdef HAS_SIGACTION Sighandler_t -rsignal(signo, handler) -int signo; -Sighandler_t handler; +rsignal(int signo, Sighandler_t handler) { struct sigaction act, oact; @@ -1915,6 +1958,10 @@ Sighandler_t handler; #ifdef SA_RESTART act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ #endif +#ifdef SA_NOCLDWAIT + if (signo == SIGCHLD && handler == (Sighandler_t)SIG_IGN) + act.sa_flags |= SA_NOCLDWAIT; +#endif if (sigaction(signo, &act, &oact) == -1) return SIG_ERR; else @@ -1922,8 +1969,7 @@ Sighandler_t handler; } Sighandler_t -rsignal_state(signo) -int signo; +rsignal_state(int signo) { struct sigaction oact; @@ -1934,10 +1980,7 @@ int signo; } int -rsignal_save(signo, handler, save) -int signo; -Sighandler_t handler; -Sigsave_t *save; +rsignal_save(int signo, Sighandler_t handler, Sigsave_t *save) { struct sigaction act; @@ -1947,13 +1990,15 @@ Sigsave_t *save; #ifdef SA_RESTART act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ #endif +#ifdef SA_NOCLDWAIT + if (signo == SIGCHLD && handler == (Sighandler_t)SIG_IGN) + act.sa_flags |= SA_NOCLDWAIT; +#endif return sigaction(signo, &act, save); } int -rsignal_restore(signo, save) -int signo; -Sigsave_t *save; +rsignal_restore(int signo, Sigsave_t *save) { return sigaction(signo, save, (struct sigaction *)NULL); } @@ -1961,53 +2006,44 @@ Sigsave_t *save; #else /* !HAS_SIGACTION */ Sighandler_t -rsignal(signo, handler) -int signo; -Sighandler_t handler; +rsignal(int signo, Sighandler_t handler) { - return signal(signo, handler); + return PerlProc_signal(signo, handler); } static int sig_trapped; static Signal_t -sig_trap(signo) -int signo; +sig_trap(int signo) { sig_trapped++; } Sighandler_t -rsignal_state(signo) -int signo; +rsignal_state(int signo) { Sighandler_t oldsig; sig_trapped = 0; - oldsig = signal(signo, sig_trap); - signal(signo, oldsig); + oldsig = PerlProc_signal(signo, sig_trap); + PerlProc_signal(signo, oldsig); if (sig_trapped) - kill(getpid(), signo); + PerlProc_kill(getpid(), signo); return oldsig; } int -rsignal_save(signo, handler, save) -int signo; -Sighandler_t handler; -Sigsave_t *save; +rsignal_save(int signo, Sighandler_t handler, Sigsave_t *save) { - *save = signal(signo, handler); + *save = PerlProc_signal(signo, handler); return (*save == SIG_ERR) ? -1 : 0; } int -rsignal_restore(signo, save) -int signo; -Sigsave_t *save; +rsignal_restore(int signo, Sigsave_t *save) { - return (signal(signo, *save) == SIG_ERR) ? -1 : 0; + return (PerlProc_signal(signo, *save) == SIG_ERR) ? -1 : 0; } #endif /* !HAS_SIGACTION */ @@ -2015,23 +2051,26 @@ Sigsave_t *save; /* VMS' my_pclose() is in VMS.c; same with OS/2 */ #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) I32 -my_pclose(ptr) -PerlIO *ptr; +my_pclose(PerlIO *ptr) { Sigsave_t hstat, istat, qstat; int status; SV **svp; int pid; + int pid2; bool close_failed; int saved_errno; #ifdef VMS int saved_vaxc_errno; #endif +#ifdef WIN32 + int saved_win32_errno; +#endif - svp = av_fetch(fdpid,PerlIO_fileno(ptr),TRUE); + svp = av_fetch(PL_fdpid,PerlIO_fileno(ptr),TRUE); pid = (int)SvIVX(*svp); SvREFCNT_dec(*svp); - *svp = &sv_undef; + *svp = &PL_sv_undef; #ifdef OS2 if (pid == -1) { /* Opened by popen. */ return my_syspclose(ptr); @@ -2042,16 +2081,19 @@ PerlIO *ptr; #ifdef VMS saved_vaxc_errno = vaxc$errno; #endif +#ifdef WIN32 + saved_win32_errno = GetLastError(); +#endif } #ifdef UTS - if(kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */ + if(PerlProc_kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */ #endif rsignal_save(SIGHUP, SIG_IGN, &hstat); rsignal_save(SIGINT, SIG_IGN, &istat); rsignal_save(SIGQUIT, SIG_IGN, &qstat); do { - pid = wait4pid(pid, &status, 0); - } while (pid == -1 && errno == EINTR); + pid2 = wait4pid(pid, &status, 0); + } while (pid2 == -1 && errno == EINTR); rsignal_restore(SIGHUP, &hstat); rsignal_restore(SIGINT, &istat); rsignal_restore(SIGQUIT, &qstat); @@ -2059,16 +2101,13 @@ PerlIO *ptr; SETERRNO(saved_errno, saved_vaxc_errno); return -1; } - return(pid < 0 ? pid : status == 0 ? 0 : (errno = 0, status)); + return(pid2 < 0 ? pid2 : status == 0 ? 0 : (errno = 0, status)); } #endif /* !DOSISH */ -#if !defined(DOSISH) || defined(OS2) +#if !defined(DOSISH) || defined(OS2) || defined(WIN32) I32 -wait4pid(pid,statusp,flags) -int pid; -int *statusp; -int flags; +wait4pid(int pid, int *statusp, int flags) { SV *sv; SV** svp; @@ -2078,23 +2117,23 @@ int flags; return -1; if (pid > 0) { sprintf(spid, "%d", pid); - svp = hv_fetch(pidstatus,spid,strlen(spid),FALSE); - if (svp && *svp != &sv_undef) { + svp = hv_fetch(PL_pidstatus,spid,strlen(spid),FALSE); + if (svp && *svp != &PL_sv_undef) { *statusp = SvIVX(*svp); - (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); + (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD); return pid; } } else { HE *entry; - hv_iterinit(pidstatus); - if (entry = hv_iternext(pidstatus)) { + hv_iterinit(PL_pidstatus); + if (entry = hv_iternext(PL_pidstatus)) { pid = atoi(hv_iterkey(entry,(I32*)statusp)); - sv = hv_iterval(pidstatus,entry); + sv = hv_iterval(PL_pidstatus,entry); *statusp = SvIVX(sv); sprintf(spid, "%d", pid); - (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); + (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD); return pid; } } @@ -2103,7 +2142,7 @@ int flags; if (!HAS_WAITPID_RUNTIME) goto hard_way; # endif - return waitpid(pid,statusp,flags); + return PerlProc_waitpid(pid,statusp,flags); #endif #if !defined(HAS_WAITPID) && defined(HAS_WAIT4) return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *)); @@ -2115,7 +2154,7 @@ int flags; if (flags) croak("Can't do waitpid with flags"); else { - while ((result = wait(statusp)) != pid && pid > 0 && result >= 0) + while ((result = PerlProc_wait(statusp)) != pid && pid > 0 && result >= 0) pidgone(result,*statusp); if (result < 0) *statusp = -1; @@ -2124,19 +2163,17 @@ int flags; } #endif } -#endif /* !DOSISH */ +#endif /* !DOSISH || OS2 || WIN32 */ void /*SUPPRESS 590*/ -pidgone(pid,status) -int pid; -int status; +pidgone(int pid, int status) { register SV *sv; char spid[TYPE_CHARS(int)]; sprintf(spid, "%d", pid); - sv = *hv_fetch(pidstatus,spid,strlen(spid),TRUE); + sv = *hv_fetch(PL_pidstatus,spid,strlen(spid),TRUE); (void)SvUPGRADE(sv,SVt_IV); SvIVX(sv) = status; return; @@ -2163,11 +2200,7 @@ PerlIO *ptr; #endif void -repeatcpy(to,from,len,count) -register char *to; -register char *from; -I32 len; -register I32 count; +repeatcpy(register char *to, register char *from, I32 len, register I32 count) { register I32 todo; register char *frombase = from; @@ -2287,13 +2320,13 @@ char *b; sv_setpv(tmpsv, "."); else sv_setpvn(tmpsv, a, fa - a); - if (Stat(SvPVX(tmpsv), &tmpstatbuf1) < 0) + if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf1) < 0) return FALSE; if (fb == b) sv_setpv(tmpsv, "."); else sv_setpvn(tmpsv, b, fb - b); - if (Stat(SvPVX(tmpsv), &tmpstatbuf2) < 0) + if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf2) < 0) return FALSE; return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev && tmpstatbuf1.st_ino == tmpstatbuf2.st_ino; @@ -2301,10 +2334,7 @@ char *b; #endif /* !HAS_RENAME */ UV -scan_oct(start, len, retlen) -char *start; -I32 len; -I32 *retlen; +scan_oct(char *start, I32 len, I32 *retlen) { register char *s = start; register UV retval = 0; @@ -2319,36 +2349,246 @@ I32 *retlen; retval = n | (*s++ - '0'); len--; } - if (dowarn && len && (*s == '8' || *s == '9')) + if (PL_dowarn && len && (*s == '8' || *s == '9')) warn("Illegal octal digit ignored"); *retlen = s - start; return retval; } UV -scan_hex(start, len, retlen) -char *start; -I32 len; -I32 *retlen; +scan_hex(char *start, I32 len, I32 *retlen) { register char *s = start; register UV retval = 0; bool overflowed = FALSE; - char *tmp; + char *tmp = s; - while (len-- && *s && (tmp = strchr(hexdigit, *s))) { + while (len-- && *s && (tmp = strchr((char *) PL_hexdigit, *s))) { register UV n = retval << 4; if (!overflowed && (n >> 4) != retval) { warn("Integer overflow in hex number"); overflowed = TRUE; } - retval = n | (tmp - hexdigit) & 15; + retval = n | ((tmp - PL_hexdigit) & 15); s++; } + if (PL_dowarn && !tmp) { + warn("Illegal hex digit ignored"); + } *retlen = s - start; return retval; } +char* +find_script(char *scriptname, bool dosearch, char **search_ext, I32 flags) +{ + dTHR; + char *xfound = Nullch; + char *xfailed = Nullch; + char tmpbuf[512]; + register char *s; + I32 len; + int retval; +#if defined(DOSISH) && !defined(OS2) && !defined(atarist) +# define SEARCH_EXTS ".bat", ".cmd", NULL +# define MAX_EXT_LEN 4 +#endif +#ifdef OS2 +# define SEARCH_EXTS ".cmd", ".btm", ".bat", ".pl", NULL +# define MAX_EXT_LEN 4 +#endif +#ifdef VMS +# define SEARCH_EXTS ".pl", ".com", NULL +# define MAX_EXT_LEN 4 +#endif + /* additional extensions to try in each dir if scriptname not found */ +#ifdef SEARCH_EXTS + char *exts[] = { SEARCH_EXTS }; + char **ext = search_ext ? search_ext : exts; + int extidx = 0, i = 0; + char *curext = Nullch; +#else +# define MAX_EXT_LEN 0 +#endif + + /* + * If dosearch is true and if scriptname does not contain path + * delimiters, search the PATH for scriptname. + * + * If SEARCH_EXTS is also defined, will look for each + * scriptname{SEARCH_EXTS} whenever scriptname is not found + * while searching the PATH. + * + * Assuming SEARCH_EXTS is C<".foo",".bar",NULL>, PATH search + * proceeds as follows: + * If DOSISH or VMSISH: + * + look for ./scriptname{,.foo,.bar} + * + search the PATH for scriptname{,.foo,.bar} + * + * If !DOSISH: + * + look *only* in the PATH for scriptname{,.foo,.bar} (note + * this will not look in '.' if it's not in the PATH) + */ + tmpbuf[0] = '\0'; + +#ifdef VMS +# ifdef ALWAYS_DEFTYPES + len = strlen(scriptname); + if (!(len == 1 && *scriptname == '-') && scriptname[len-1] != ':') { + int hasdir, idx = 0, deftypes = 1; + bool seen_dot = 1; + + hasdir = !dosearch || (strpbrk(scriptname,":[= sizeof tmpbuf) + continue; /* don't search dir with too-long name */ + strcat(tmpbuf, scriptname); +#else /* !VMS */ + +#ifdef DOSISH + if (strEQ(scriptname, "-")) + dosearch = 0; + if (dosearch) { /* Look in '.' first. */ + char *cur = scriptname; +#ifdef SEARCH_EXTS + if ((curext = strrchr(scriptname,'.'))) /* possible current ext */ + while (ext[i]) + if (strEQ(ext[i++],curext)) { + extidx = -1; /* already has an ext */ + break; + } + do { +#endif + DEBUG_p(PerlIO_printf(Perl_debug_log, + "Looking for %s\n",cur)); + if (PerlLIO_stat(cur,&PL_statbuf) >= 0) { + dosearch = 0; + scriptname = cur; +#ifdef SEARCH_EXTS + break; +#endif + } +#ifdef SEARCH_EXTS + if (cur == scriptname) { + len = strlen(scriptname); + if (len+MAX_EXT_LEN+1 >= sizeof(tmpbuf)) + break; + cur = strcpy(tmpbuf, scriptname); + } + } while (extidx >= 0 && ext[extidx] /* try an extension? */ + && strcpy(tmpbuf+len, ext[extidx++])); +#endif + } +#endif + + if (dosearch && !strchr(scriptname, '/') +#ifdef DOSISH + && !strchr(scriptname, '\\') +#endif + && (s = PerlEnv_getenv("PATH"))) { + bool seen_dot = 0; + + PL_bufend = s + strlen(s); + while (s < PL_bufend) { +#if defined(atarist) || defined(DOSISH) + for (len = 0; *s +# ifdef atarist + && *s != ',' +# endif + && *s != ';'; len++, s++) { + if (len < sizeof tmpbuf) + tmpbuf[len] = *s; + } + if (len < sizeof tmpbuf) + tmpbuf[len] = '\0'; +#else /* ! (atarist || DOSISH) */ + s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, s, PL_bufend, + ':', + &len); +#endif /* ! (atarist || DOSISH) */ + if (s < PL_bufend) + s++; + if (len + 1 + strlen(scriptname) + MAX_EXT_LEN >= sizeof tmpbuf) + continue; /* don't search dir with too-long name */ + if (len +#if defined(atarist) || defined(DOSISH) + && tmpbuf[len - 1] != '/' + && tmpbuf[len - 1] != '\\' +#endif + ) + tmpbuf[len++] = '/'; + if (len == 2 && tmpbuf[0] == '.') + seen_dot = 1; + (void)strcpy(tmpbuf + len, scriptname); +#endif /* !VMS */ + +#ifdef SEARCH_EXTS + len = strlen(tmpbuf); + if (extidx > 0) /* reset after previous loop */ + extidx = 0; + do { +#endif + DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tmpbuf)); + retval = PerlLIO_stat(tmpbuf,&PL_statbuf); +#ifdef SEARCH_EXTS + } while ( retval < 0 /* not there */ + && extidx>=0 && ext[extidx] /* try an extension? */ + && strcpy(tmpbuf+len, ext[extidx++]) + ); +#endif + if (retval < 0) + continue; + if (S_ISREG(PL_statbuf.st_mode) + && cando(S_IRUSR,TRUE,&PL_statbuf) +#ifndef DOSISH + && cando(S_IXUSR,TRUE,&PL_statbuf) +#endif + ) + { + xfound = tmpbuf; /* bingo! */ + break; + } + if (!xfailed) + xfailed = savepv(tmpbuf); + } +#ifndef DOSISH + if (!xfound && !seen_dot && !xfailed && (PerlLIO_stat(scriptname,&PL_statbuf) < 0)) +#endif + seen_dot = 1; /* Disable message. */ + if (!xfound) { + if (flags & 1) { /* do or die? */ + croak("Can't %s %s%s%s", + (xfailed ? "execute" : "find"), + (xfailed ? xfailed : scriptname), + (xfailed ? "" : " on PATH"), + (xfailed || seen_dot) ? "" : ", '.' not in PATH"); + } + scriptname = Nullch; + } + if (xfailed) + Safefree(xfailed); + scriptname = xfound; + } + return (scriptname ? savepv(scriptname) : Nullch); +} + + #ifdef USE_THREADS #ifdef FAKE_THREADS /* Very simplistic scheduler for now */ @@ -2369,7 +2609,7 @@ void perl_cond_signal(cp) perl_cond *cp; { - perl_thread t; + perl_os_thread t; perl_cond cond = *cp; if (!cond) @@ -2390,7 +2630,7 @@ void perl_cond_broadcast(cp) perl_cond *cp; { - perl_thread t; + perl_os_thread t; perl_cond cond, cond_next; for (cond = *cp; cond; cond = cond_next) { @@ -2429,20 +2669,19 @@ perl_cond *cp; #endif /* FAKE_THREADS */ #ifdef OLD_PTHREADS_API -struct thread * +struct perl_thread * getTHR _((void)) { pthread_addr_t t; - if (pthread_getspecific(thr_key, &t)) + if (pthread_getspecific(PL_thr_key, &t)) croak("panic: pthread_getspecific"); - return (struct thread *) t; + return (struct perl_thread *) t; } #endif /* OLD_PTHREADS_API */ MAGIC * -condpair_magic(sv) -SV *sv; +condpair_magic(SV *sv) { MAGIC *mg; @@ -2456,11 +2695,11 @@ SV *sv; COND_INIT(&cp->owner_cond); COND_INIT(&cp->cond); cp->owner = 0; - MUTEX_LOCK(&sv_mutex); + LOCK_SV_MUTEX; mg = mg_find(sv, 'm'); if (mg) { /* someone else beat us to initialising it */ - MUTEX_UNLOCK(&sv_mutex); + UNLOCK_SV_MUTEX; MUTEX_DESTROY(&cp->mutex); COND_DESTROY(&cp->owner_cond); COND_DESTROY(&cp->cond); @@ -2471,13 +2710,128 @@ SV *sv; mg = SvMAGIC(sv); mg->mg_ptr = (char *)cp; mg->mg_len = sizeof(cp); - MUTEX_UNLOCK(&sv_mutex); + UNLOCK_SV_MUTEX; DEBUG_L(WITH_THR(PerlIO_printf(PerlIO_stderr(), "%p: condpair_magic %p\n", thr, sv));) } } return mg; } + +/* + * Make a new perl thread structure using t as a prototype. Some of the + * fields for the new thread are copied from the prototype thread, t, + * so t should not be running in perl at the time this function is + * called. The use by ext/Thread/Thread.xs in core perl (where t is the + * thread calling new_struct_thread) clearly satisfies this constraint. + */ +struct perl_thread * +new_struct_thread(struct perl_thread *t) +{ + struct perl_thread *thr; + SV *sv; + SV **svp; + I32 i; + + sv = newSVpv("", 0); + SvGROW(sv, sizeof(struct perl_thread) + 1); + SvCUR_set(sv, sizeof(struct perl_thread)); + thr = (Thread) SvPVX(sv); + /* debug */ + memset(thr, 0xab, sizeof(struct perl_thread)); + PL_markstack = 0; + PL_scopestack = 0; + PL_savestack = 0; + PL_retstack = 0; + PL_dirty = 0; + PL_localizing = 0; + /* end debug */ + + thr->oursv = sv; + init_stacks(ARGS); + + PL_curcop = &PL_compiling; + thr->cvcache = newHV(); + thr->threadsv = newAV(); + thr->specific = newAV(); + thr->errsv = newSVpv("", 0); + thr->errhv = newHV(); + thr->flags = THRf_R_JOINABLE; + MUTEX_INIT(&thr->mutex); + + PL_curcop = t->Tcurcop; /* XXX As good a guess as any? */ + PL_defstash = t->Tdefstash; /* XXX maybe these should */ + PL_curstash = t->Tcurstash; /* always be set to main? */ + + + /* top_env needs to be non-zero. It points to an area + in which longjmp() stuff is stored, as C callstack + info there at least is thread specific this has to + be per-thread. Otherwise a 'die' in a thread gives + that thread the C stack of last thread to do an eval {}! + See comments in scope.h + Initialize top entry (as in perl.c for main thread) + */ + PL_start_env.je_prev = NULL; + PL_start_env.je_ret = -1; + PL_start_env.je_mustcatch = TRUE; + PL_top_env = &PL_start_env; + + PL_in_eval = FALSE; + PL_restartop = 0; + + PL_tainted = t->Ttainted; + PL_curpm = t->Tcurpm; /* XXX No PMOP ref count */ + PL_nrs = newSVsv(t->Tnrs); + PL_rs = SvREFCNT_inc(PL_nrs); + PL_last_in_gv = Nullgv; + PL_ofslen = t->Tofslen; + PL_ofs = savepvn(t->Tofs, PL_ofslen); + PL_defoutgv = (GV*)SvREFCNT_inc(t->Tdefoutgv); + PL_chopset = t->Tchopset; + PL_formtarget = newSVsv(t->Tformtarget); + PL_bodytarget = newSVsv(t->Tbodytarget); + PL_toptarget = newSVsv(t->Ttoptarget); + + PL_statname = NEWSV(66,0); + PL_maxscream = -1; + PL_regcompp = FUNC_NAME_TO_PTR(pregcomp); + PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags); + PL_regindent = 0; + PL_reginterp_cnt = 0; + PL_lastscream = Nullsv; + PL_screamfirst = 0; + PL_screamnext = 0; + PL_reg_start_tmp = 0; + PL_reg_start_tmpl = 0; + + /* Initialise all per-thread SVs that the template thread used */ + svp = AvARRAY(t->threadsv); + for (i = 0; i <= AvFILLp(t->threadsv); i++, svp++) { + if (*svp && *svp != &PL_sv_undef) { + SV *sv = newSVsv(*svp); + av_store(thr->threadsv, i, sv); + sv_magic(sv, 0, 0, &PL_threadsv_names[i], 1); + DEBUG_L(PerlIO_printf(PerlIO_stderr(), + "new_struct_thread: copied threadsv %d %p->%p\n",i, t, thr)); + } + } + thr->threadsvp = AvARRAY(thr->threadsv); + + MUTEX_LOCK(&PL_threads_mutex); + PL_nthreads++; + thr->tid = ++PL_threadnum; + thr->next = t->next; + thr->prev = t; + t->next = thr; + thr->next->prev = thr; + MUTEX_UNLOCK(&PL_threads_mutex); + +#ifdef HAVE_THREAD_INTERN + init_thread_intern(thr); +#endif /* HAVE_THREAD_INTERN */ + return thr; +} #endif /* USE_THREADS */ #ifdef HUGE_VAL @@ -2487,8 +2841,47 @@ SV *sv; * Needed for SunOS with Sun's 'acc' for example. */ double -Perl_huge() +Perl_huge(void) { return HUGE_VAL; } #endif + +#ifdef PERL_GLOBAL_STRUCT +struct perl_vars * +Perl_GetVars(void) +{ + return &PL_Vars; +} +#endif + +char ** +get_op_names(void) +{ + return op_name; +} + +char ** +get_op_descs(void) +{ + return op_desc; +} + +char * +get_no_modify(void) +{ + return (char*)no_modify; +} + +U32 * +get_opargs(void) +{ + return opargs; +} + + +SV ** +get_specialsv_list(void) +{ + return PL_specialsv_list; +}